Reinforced concrete construction.



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APPLICA ED JUNE 19. I 1,157,381. 7 Patented Oct. 19, 1915.

HERBERT GREEN, or KANSAS CITY, MISSOURI.

'nni'nrononn oononn'rn cons'rnuc'rron.

To all whom it may concern r useful Improvements in Reinforced. Concrete Construction; and I do declare the following to be a full, clear, and exact description of the invention, such as Wlll e11? able others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of referprovide a floor and girders, and wherein the space between tile, or' being made of concrete,

the like, instead of ence marked thereon, this specification. 7

My invention relates to reinforced concrete construction and has for its object to slab having concealed beams which form a part of said beams and girders is cored with for the purpose of lightening the slab, thus allowing the manufacturer to reduce the amount of reinforcement, and the SIZE/Of the v supporting columns, and increase the clear height of the building, thenumber of floors possible, and the availablefioor space. In accomplishing this object, I have'provided the improved details ofstructure hereinafter described and illustrated in the accom any;

ing drawings, wherein the figure is a perspective view of a floor'constructed according to my invention, the main part of the view showing the concrete broken away to disclose the beams and girders and slab cores. Referring more in detail tothe parts :-'1 design ates the columns, ordinary construction. Extending between the columns 1 are direct girders 2,-c'om'pris ing a number of steel rods arranged in close proximity to eachother and having the upturned sections 2' at the column positions to meet the reverse mcmentsvat, such points. Extending diagonally between the columns and diagonal girders 3, which are formed of the same material and in the same manner as the direct girders 2 and have the reverse moment sections 3 which cross the parts 2' above the columns. H

Arranged in the spaces between the direct and diagonal girders are tiles 8, which are spaced from the direct and diagonal girder I rods 23, to form channels H; the ends of the tiles facing the diagonal girders, being cut at an angle in order that the sides of such channels may be parallel. Between the Specification of Letters Patent.

Application filed June 19, 1911.

which may be of any Patented Oct. is, 1915,

Serial 1Y0. 634,007.

tiles 3 are reinforcing rods 5, called beams, which extend into the direct girders 2 and into the diagonal girders 3; the ends of the rods either terminatingin the girders and being side lapped in the latter, or continuous into the next, panel, as illustrated in the drawing; 7

6 designates a bed of concrete which fills the channels between the tiles and surrounds the direct girders, diagonal girders and beams to form a solid, compact slab having a smooth flooring surface and a flat ceiling.

In laying the slab, I use ordinary sla forms (not shown) which may be supported in any suitable manner and upon which the beamand girder rods andminor reinforcements are laid, together with the core tiles.

After the foundation parts have been placed, I pour theconcrete, so; that it flows into thespac'es between the tiles and around the rods,so'that when the fluid concrete has set, it will form a solid, substantial slab, and the separate partswill be united to form asolid'unit. I r

It is readily apparent that by providing the diagonal girders, additional strength is afforded to withstand substantialweight,

and that by filling the spaces between the direct girders and diagonal girders with the tile, the weight of the slab is reduced, while maintaining the required strength.

Having "thus described my invention, what I claim as new cure by Letters-Patent is 1. In concrete floor construction, the combination with supporting columns, of direct girder reinforcements supported by the columns, diagonal girder reinforcements also supported by the columns and forming triangular spaces with inforcement, spaced beam reinforcements within said triangular spaces and running parallel to the aforesaid direct girder reinforcements and restin on the latter, as well as on the said diagonal girder reinforcements, tiles between said spaced beam reinforcements, and concrete in the spaces between the tiles, forming integral beams and girders.

2. In reinforced concrete construction, a

ing a flat ceiling and a fiat floor surface with beams therebetween,

concealed girders and being formed of the the girders and beams therein and desire to se-' the direct girder rc- 1 lnclosing girder concrete and reinforcing rods'between the v tile arranged in'spaced rows, the beams being between the sides of'said' spaced rows and the girders being between the ends of the supporting columns thereof, the remaining portion of said girers intersecting at thecenterof theslab, and

closing girders said diagonals being substantially perpendicular to an adjacent tinuous beyond the axis of the columns.

'In a concrete floor construction the combination Witha pluralityof supports, of

thereover nor- Stud respective reinreinforcement members laid mally thereto With forcement members disposed at rightanglesf form substantially a reca tangular panel between any'fourof said" to one another to supports, diagonally disposed reinforcement members laid upon said supports; subdrv1dingsald rectangular panel into four trlangular panels, a pluralityof rows of tiles placed end to end laid Within each of'saidfitriangular panels With the axes of said respect ve rows parallel to one another in each triangular panel and disposed normal to the 'axes of the reinforcement members disposed normal to said supports, 7 spaced from those of another adjacent row permitting concrete to be bonded between the respective rows thereof in each of said being diagonals Within said inclosing, V parallelograms, thebeams betweenisa d m and at a smaller angle with a diagonal, therods in the girders being con- With the boundary Within each triangular 7 panel section's,

said tiles inone row triangularpanels formingbeams Within the a main rectangular panel Which are normalto the reinforcement 'n'iembers bounding said rectangular panel and directedtoward the middle thereof, and a plurality of reinforc--' ing members laid between said tiles 7 and molded into the concrete beam so-formed. 1 it? 4., in concretepa'nel floor construction a plurality of supports, and. a monolithic concrete floor su orted 7 rectangular floor panel sections, eachpanel section divided geometricallv into four tr angular panel-sec:

V thereonusaidsup ports disposed to ,form, thebounding' corners s ofj integrally connected tions, reinforcement members laid upon said supports with their axes disposed coincident panel sections, a series of rows of tiles'p laced roWs spaced one from parallel to the structure.

in presence of two-witnesses.

Witnesses MYRTLE M. JACKS N, ARTHUR W. CAPS.

panel section, said; another to ipfi mit I bonding of the concrete therebetween, and.

all ofsaid rows'directed toward the middle of the rectangular floor panel section, the in nermost tiles of the rows of tiles ofeach triangular. section having one edge cut away boundaries of the triangular and reinforcement members laid between saidrespective rows of tiles and bonded into the concrete molded into the;

lines of said triangular s HERBERT r; GREEN.

Copies of this patent may be obtained for five cents'each, by addressing the, Commissioner of Patents, Washington,D.0. v I J 

